Re: [OSM-talk] odd rendering + county boundaries

2009-03-03 Thread Steve Chilton
As Jon says we are on the case, but it is not simple.
BTW not done deliberately, more a result of counties/countries being put in 
relations and then picking up styling by default that was designed with some 
other instance in mind. This is equally true of rendering names along 
boundaries which was not designed for, but is an artefact of the same process.
 
Cheers
STEVE(8)

-Original Message- 
From: Jon Burgess [mailto:jburgess...@googlemail.com] 
Sent: Mon 3/2/2009 7:00 PM 
To: ke...@kevinpeat.com 
Cc: Thomas Wood; OSM Talk; Steve Chilton 
Subject: Re: [OSM-talk] odd rendering + county boundaries



On Mon, 2009-03-02 at 13:00 +, Kevin Peat wrote:

 It's two thingsthe county boundary shouldn't go up rivers in the
 first place but also the part of the boundary that follows the coast
 would be better not being rendered. It seems to me that it must be
 included in a relation so that the county is an area but would be
 better
 not being visible.

 Kevin

I discussed this with Steve8 a few days ago on IRC and the plan is to:

- Hide any boundary rendering on ways with natural=coastline

- When there is more than one boundary on a given way, only render the
one with the lowest admin_level. This corresponds to the most important
boundary.

It is complicated by the fact that the information has to be
cross-referenced across multiple objects. This will need some extra
processing in osm2pgsql to implement and it may be a few weeks before I
get around to it.

Jon




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Re: [OSM-talk] odd rendering + county boundaries

2009-03-02 Thread Thomas Wood
I believe that there's some boundary rendering bugs that are yet to be
fixed in mapnik, I've not seen this one before.

As a side issue, does the county boundary really go up the river like
that or just cut across the mouth? I think we need to review this. I
recall talking to steve8 who did the boundary relation for the
southwest counties that he'd just added the coastline to the relation,
and not considered river mouths. I'll look into the data myself if I
get the time.

2009/3/2 Kevin Peat ke...@kevinpeat.com:
 I made some changes a couple of weeks ago to the banks of the River Dart
 through Totnes

 http://www.openstreetmap.org/?lat=50.42863lon=-3.67974zoom=15layers=B000FFF

 Obviously those changes have been picked up as the county boundary is
 rendering along the updated river bank but the actual river isn't.

 Is this just a time lag thing or have I done something wrong?

 On the subject of UK county boundaries it's nice to see them rendering
 (in Mapnik) but it seems a bit odd for the boundaries to be rendered
 around coastlines and up river estuaries. Is it possible to only render
 the inland parts ie. where the ways are not tagged as natural=coastline?

 thanks,
 Kevin

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Regards,
Thomas Wood
(Edgemaster)

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Re: [OSM-talk] odd rendering + county boundaries

2009-03-02 Thread Aun Johnsen (via Webmail)
Maybe the coastal part of the boundary should follow the baseline as per
http://wiki.openstreetmap.org/wiki/Maritime_borders

The base line is the maritime border closest to the coast, and will
probably not be rendered on most maps.

--[]
On Mon, 2 Mar 2009 11:22:34 +, Thomas Wood grand.edgemas...@gmail.com
wrote:
 I believe that there's some boundary rendering bugs that are yet to be
 fixed in mapnik, I've not seen this one before.
 
 As a side issue, does the county boundary really go up the river like
 that or just cut across the mouth? I think we need to review this. I
 recall talking to steve8 who did the boundary relation for the
 southwest counties that he'd just added the coastline to the relation,
 and not considered river mouths. I'll look into the data myself if I
 get the time.
 
 2009/3/2 Kevin Peat ke...@kevinpeat.com:
 I made some changes a couple of weeks ago to the banks of the River Dart
 through Totnes


http://www.openstreetmap.org/?lat=50.42863lon=-3.67974zoom=15layers=B000FFF

 Obviously those changes have been picked up as the county boundary is
 rendering along the updated river bank but the actual river isn't.

 Is this just a time lag thing or have I done something wrong?

 On the subject of UK county boundaries it's nice to see them rendering
 (in Mapnik) but it seems a bit odd for the boundaries to be rendered
 around coastlines and up river estuaries. Is it possible to only render
 the inland parts ie. where the ways are not tagged as natural=coastline?

 thanks,
 Kevin

 ___
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 talk@openstreetmap.org
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-- 
Brgds
Aun Johnsen
via Webmail

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Re: [OSM-talk] odd rendering + county boundaries

2009-03-02 Thread Thomas Wood
The reason it is being rendered is because the coastline is included
in the boundary relation, not (afaik) any tagging on the coastline
and/or overlapping boundary ways.

2009/3/2 Aun Johnsen (via Webmail) skipp...@gimnechiske.org:
 Maybe the coastal part of the boundary should follow the baseline as per
 http://wiki.openstreetmap.org/wiki/Maritime_borders

 The base line is the maritime border closest to the coast, and will
 probably not be rendered on most maps.

 --[]
 On Mon, 2 Mar 2009 11:22:34 +, Thomas Wood grand.edgemas...@gmail.com
 wrote:
 I believe that there's some boundary rendering bugs that are yet to be
 fixed in mapnik, I've not seen this one before.

 As a side issue, does the county boundary really go up the river like
 that or just cut across the mouth? I think we need to review this. I
 recall talking to steve8 who did the boundary relation for the
 southwest counties that he'd just added the coastline to the relation,
 and not considered river mouths. I'll look into the data myself if I
 get the time.

 2009/3/2 Kevin Peat ke...@kevinpeat.com:
 I made some changes a couple of weeks ago to the banks of the River Dart
 through Totnes


 http://www.openstreetmap.org/?lat=50.42863lon=-3.67974zoom=15layers=B000FFF

 Obviously those changes have been picked up as the county boundary is
 rendering along the updated river bank but the actual river isn't.

 Is this just a time lag thing or have I done something wrong?

 On the subject of UK county boundaries it's nice to see them rendering
 (in Mapnik) but it seems a bit odd for the boundaries to be rendered
 around coastlines and up river estuaries. Is it possible to only render
 the inland parts ie. where the ways are not tagged as natural=coastline?

 thanks,
 Kevin

 ___
 talk mailing list
 talk@openstreetmap.org
 http://lists.openstreetmap.org/listinfo/talk


 --
 Brgds
 Aun Johnsen
 via Webmail

 ___
 talk mailing list
 talk@openstreetmap.org
 http://lists.openstreetmap.org/listinfo/talk




-- 
Regards,
Thomas Wood
(Edgemaster)

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Re: [OSM-talk] odd rendering + county boundaries

2009-03-02 Thread Kevin Peat
It's two thingsthe county boundary shouldn't go up rivers in the 
first place but also the part of the boundary that follows the coast 
would be better not being rendered. It seems to me that it must be 
included in a relation so that the county is an area but would be better 
not being visible.

Kevin


Thomas Wood wrote:
 The reason it is being rendered is because the coastline is included
 in the boundary relation, not (afaik) any tagging on the coastline
 and/or overlapping boundary ways.
 
 2009/3/2 Aun Johnsen (via Webmail) skipp...@gimnechiske.org:
 Maybe the coastal part of the boundary should follow the baseline as per
 http://wiki.openstreetmap.org/wiki/Maritime_borders

 The base line is the maritime border closest to the coast, and will
 probably not be rendered on most maps.

 --[]
 On Mon, 2 Mar 2009 11:22:34 +, Thomas Wood grand.edgemas...@gmail.com
 wrote:
 I believe that there's some boundary rendering bugs that are yet to be
 fixed in mapnik, I've not seen this one before.

 As a side issue, does the county boundary really go up the river like
 that or just cut across the mouth? I think we need to review this. I
 recall talking to steve8 who did the boundary relation for the
 southwest counties that he'd just added the coastline to the relation,
 and not considered river mouths. I'll look into the data myself if I
 get the time.

 2009/3/2 Kevin Peat ke...@kevinpeat.com:
 I made some changes a couple of weeks ago to the banks of the River Dart
 through Totnes


 http://www.openstreetmap.org/?lat=50.42863lon=-3.67974zoom=15layers=B000FFF
 Obviously those changes have been picked up as the county boundary is
 rendering along the updated river bank but the actual river isn't.

 Is this just a time lag thing or have I done something wrong?

 On the subject of UK county boundaries it's nice to see them rendering
 (in Mapnik) but it seems a bit odd for the boundaries to be rendered
 around coastlines and up river estuaries. Is it possible to only render
 the inland parts ie. where the ways are not tagged as natural=coastline?

 thanks,
 Kevin

 ___
 talk mailing list
 talk@openstreetmap.org
 http://lists.openstreetmap.org/listinfo/talk

 --
 Brgds
 Aun Johnsen
 via Webmail

 ___
 talk mailing list
 talk@openstreetmap.org
 http://lists.openstreetmap.org/listinfo/talk

 
 
 

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Re: [OSM-talk] odd rendering + county boundaries

2009-03-02 Thread Jon Burgess
On Mon, 2009-03-02 at 13:00 +, Kevin Peat wrote:
 
 It's two thingsthe county boundary shouldn't go up rivers in the 
 first place but also the part of the boundary that follows the coast 
 would be better not being rendered. It seems to me that it must be 
 included in a relation so that the county is an area but would be
 better 
 not being visible.
 
 Kevin

I discussed this with Steve8 a few days ago on IRC and the plan is to:

- Hide any boundary rendering on ways with natural=coastline

- When there is more than one boundary on a given way, only render the
one with the lowest admin_level. This corresponds to the most important
boundary. 

It is complicated by the fact that the information has to be
cross-referenced across multiple objects. This will need some extra
processing in osm2pgsql to implement and it may be a few weeks before I
get around to it.

Jon


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Re: [OSM-talk] odd rendering + county boundaries

2009-03-02 Thread Kevin Peat
Thanks Jon, that's great.

Kevin



Jon Burgess wrote:
 On Mon, 2009-03-02 at 10:51 +, Kevin Peat wrote:
 I made some changes a couple of weeks ago to the banks of the River
 Dart 
 through Totnes

 http://www.openstreetmap.org/?lat=50.42863lon=-3.67974zoom=15layers=B000FFF

 Obviously those changes have been picked up as the county boundary is 
 rendering along the updated river bank but the actual river isn't.

 Is this just a time lag thing or have I done something wrong?
 
 There is a lag. The coastlines are generated from a set of shapefiles
 which is periodically updated from the OSM data. I've just fetched the
 latest updates. 
 
 You probably won't see much difference in the map tiles until the
 weekend, but images from the export tab will show them right away (see
 attached).
 
   Jon
 
 
 
 

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